DIN 18302-2016 German construction contract procedures (VOB) - Part C General technical specifications in construction contracts (ATV) - Borehole sinking operations《德国建筑包工合同程序(VOB).pdf

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7、i g i n a l s h a l l b e c o n s i d e r e d a u t h o r i t a t i v e .03.17 DIN 18302:2016-09 2 A comma is used as the decimal marker. Foreword This document has been prepared by the Deutscher Vergabe- und Vertragsausschuss fr Bauleistungen (DVA) (German Committee for Construction Contract Proced

8、ures). Amendments This document differs from DIN 18302:2015-08 as follows: a) the document has been technically revised to reflect developments in the construction sector; b) the references to VOB/A have been updated; c) the normative references have been updated as of 2016-04. Previous editions DIN

9、 1983: 1925-08, 1944-05 DIN 18302: 1958-12, 1974-07, 1979-10, 1988-09, 1992-12, 1996-06, 2000-12, 2006-10, 2010-04, 2015-08 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references,

10、only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 1045-2:2008-08, Concrete, reinforced and prestressed concrete structures Part 8: Concrete Specification, performance, production and conformity Application ru

11、les for DIN EN 206-1 DIN 1960, German construction contract procedures (VOB) Part A: General provisions relating to the award of construction contracts DIN 1961, German construction contract procedures (VOB) Part B: General conditions of contract relating to the execution of construction work DIN 41

12、07 (all parts), Geotechnical measurements DIN 4922 (all parts), Steel filter pipes for drilled wells DIN 4924, Sands and gravels for well construction Requirements and testing DIN 4925 (all parts), Well screens and casings of unplasticized polyvinylchloride (PVC-U) for tube wells DIN 4926, Steel wel

13、lheads DN 400 to DN 1200 DIN 4927, Flanged steel rising pipes for raising of water Nominal diameter DN 50 to DN 200 DIN 4935 (all parts), Wire wrapped screens of stainless steel for wells DIN 4942, Threaded steel rising pipes for raising of water DN 50 to DN 200 DIN 4943, Graphical layout and docume

14、ntation of wells and ground water measuring points DIN 18302:2016-09 3 DIN 4945 (all parts), Rising pipes with tension proof socket for water raising DIN 8061, Unplasticized polyvinylchloride (PVC-U) pipes General quality requirements, testing DIN 8062, Unplasticized polyvinylchloride (PVC-U) pipes

15、Dimensions DIN 8074, Polyethylene (PE) pipes PE 80, PE 100 Dimensions DIN 8075, Polyethylene (PE) pipes PE 80, PE 100 General quality requirements, testing DIN 18299, German construction contract procedures (VOB) Part C: General technical specifications in construction contracts (ATV) General rules

16、applying to all types of construction work DIN 18309, German construction contract procedures (VOB) Part C: General technical specifications in construction contracts (ATV) Ground treatment by grouting DIN 18319, German construction contract procedures (VOB) Part C: General technical specifications

17、in construction contracts (ATV) Trenchless pipelaying DIN 18324, German construction contract procedures (VOB) Part C: General technical specifications in construction contracts (ATV) Horizontal directional drilling works DIN EN 206-1:2001-07, Concrete Part 1: Specification, performance, production

18、and conformity DIN EN 447, Grout for prestressing tendons Basic requirements DIN EN 934-2, Admixtures for concrete, mortar and grout Part 2: Concrete admixtures Definitions, requirements, conformity, marking and labelling DIN EN 1008, Mixing water for concrete Specification for sampling, testing and

19、 assessing the suitability of water, including water recovered from processes in the concrete industry, as mixing water for concrete DIN EN 1536:2015-10, Execution of special geotechnical work Bored piles DIN EN 10025-2, Hot rolled products of structural steels Part 2: Technical delivery conditions

20、for non-alloy structural steels DIN EN 10080, Steel for the reinforcement of concrete Weldable reinforcing steel General DIN EN 10210 (all parts), Hot finished structural steel hollow sections of non-alloy and fine grain steels DIN EN 10219 (all parts), Cold formed welded structural hollow sections

21、of non-alloy and fine grain steels DIN EN 10220, Seamless and welded steel tubes Dimensions and masses per unit length DIN EN 10255, Non-alloy steel tubes suitable for welding and threading Technical delivery conditions DIN EN 12201 (all parts), Plastics piping systems for water supply, and for drai

22、nage and sewerage under pressure Polyethylene (PE) DIN EN 12620, Aggregates for concrete DIN EN 12699, Execution of special geotechnical work Displacement piles DIN EN 12794, Precast concrete products Foundation piles DIN 18302:2016-09 4 DIN EN 12904, Products used for treatment of water intended fo

23、r human consumption Silica sand and silica gravel DIN EN 13670, Execution of concrete structures DIN EN 14199, Execution of special geotechnical work Micropiles DIN EN ISO 1452 (all parts), Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure

24、Unplasticized poly(vinylchloride) (PVC-U) EA Geothermie, Empfehlung Oberflchennahe Geothermie Planung, Bau, Betrieb und berwachung EA Geothermie (Recommendation near-surface geothermal energy Planning, operation and monitoring)*)*)Publisher: DGGT Deutsche Gesellschaft fr Geotechnik e. V. (German Geo

25、technical Society), www.dggt.de and Deutsche Gesellschaft fr Geowissenschaften e. V. (German Geological Society), www.dgg.de. Obtainable from: Ernst this shall be done continually in advance as the pipes are being withdrawn in the case of lined boreholes. 3.1.5 All materials and components placed/in

26、stalled in the ground shall remain there. If they are to be removed, the work involved counts as a special task (see subclause 4.2.1). 3.1.6 Where work is to be carried out in inclement weather conditions, suitable precautions shall be taken, in consultation with the client. Examples of such conditi

27、ons include frozen ground, or temperatures below 5 C for operations involving concreting work or placing of suspension. The necessary work counts as a special task (see subclause 4.2.1). 3.1.7 Water levels in the borehole shall be measured daily, both before the start and end of work, and whenever w

28、ork is interrupted, where the borehole is not completed directly after excavation. The results shall be documented and passed on to the client each working day. 3.2 Installation of structural elements Structural members (e.g. anchorages, steel girders, precast concrete components and the like) shall

29、 be protected from damage while being installed in the borehole. DIN 18302:2016-09 11 3.3 Installation of filler and sealing materials 3.3.1 Materials and components shall be installed in accordance with DIN EN 1536 (for bored piles), DIN EN 14199 (for micropiles) or DIN EN 12699 (for displacement p

30、iles). 3.3.2 The top of the pile cap shall be within 7 cm to +50 cm relative to the top of the empty borehole, if the latter is 3 m or less in depth. Where empty boreholes are deeper, the top of the pile cap may measure another 10 cm for each metre of additional empty borehole depth. 3.3.3 Where rei

31、nforcement cages do not reach to the bottom of the borehole (floating reinforcement) double the maximum deviations according to DIN EN 1536:2015-10, subclause 8.1.2 apply. 3.3.4 Sealing materials likely to pollute the soil or water or to adversely affect the performance of the well construction shal

32、l not be used. 3.3.5 The client shall ensure that sealing materials meet all requirements. Relevant product data sheets shall be presented to the client upon request. Any further tests and investigations count as special tasks (see subclause 4.2.1). 3.3.6 Filler materials to be placed in sections sh

33、all be placed with a positional deviation of 50 cm per section up to a maximum depth of fill of 30 m; over this it shall be +10 cm for each additional 10 m of depth of fill. 3.4 Installation of measuring devices 3.4.1 DIN 4107 (all parts) shall be observed when installing geotechnical measuring devi

34、ces. 3.4.2 Drill cuttings shall not be used as filling in connection with ground water gauging stations. 3.4.3 Depending on the condition of the ground and the prevailing ground water conditions, the contractor shall, in consultation with the client, specify the length and position of the casings, s

35、creens and sealing layers. 3.4.4 The inside diameter of casings shall not be smaller than that of screens. If joints with the casings need to be watertight or airtight, this counts as a special task (see subclause 4.2.1). 3.4.5 Casings shall reach up above the working platform. If casings are not to

36、 reach up above the working platform, measures shall be taken to prevent the entry of solids or fluids. The necessary work counts as a special task (see subclause 4.2.1). 3.4.6 The completion of boreholes shall be documented in accordance with DIN 4943. DIN 18302:2016-09 12 3.5 Installation of well

37、construction materials 3.5.1 Drill cuttings shall not be used as fillers for drinking water wells. 3.5.2 Depending on the condition of the ground, the contractor shall, in consultation with the client, specify the length and position of the casings, screens and sealing layers. 3.5.3 The inside diame

38、ter of casings shall not be smaller than that of screens. If casing joints need to be watertight or airtight, this counts as a special task (see subclause 4.2.1). 3.5.4 Casings shall reach up above the working platform. If casings are not to reach up above the working platform, measures shall be tak

39、en to prevent the entry of solids or fluids. The necessary work counts as a special task (see subclause 4.2.1). 3.5.5 Pipes installed to ensure hydraulic separation and protect against the entry of surface water shall be watertight, as shall their joints. The annular space between the pipes and the

40、borehole wall shall be permanently sealed. 3.5.6 Well heads ensure a watertight seal for the well. 3.5.7 The completion of boreholes shall be documented in accordance with DIN 4943. 3.6 Installation of geothermal elements 3.6.1 Depending on the condition of the ground and the prevailing ground water

41、 conditions, the contractor shall, in consultation with the client, agree on the specifications for geothermal elements. These shall be based on the EA Geothermie1). 3.6.2 After installation of the geothermal elements, the borehole shall be filled from the bottom to the top with a suspension that is

42、 compatible with the local ground and ground water conditions and with the operation of the geothermal system. 3.6.3 The completion of boreholes using geothermal elements shall be documented. 1)Publisher: DGGT Deutsche Gesellschaft fr Geotechnik e. V. (German Geotechnical Society), www.dggt.de and D

43、eutsche Gesellschaft fr Geowissenschaften e. V. (German Geological Society), www.dgg.de. Obtainable from: Ernst & Sohn, Verlag fr Architektur und technische Wissenschaften GmbH & Co. KG, Rotherstrae 21, 10245 Berlin, www.ernst-und-sohn.de DIN 18302:2016-09 13 4 Associated tasks and special tasks 4.1

44、 In addition to those specified in DIN 18299, subclause 4.1, in particular the following also count as associated tasks: 4.1.1 Maintaining the working platform in a workmanlike condition. 4.1.2 Provision of the required product data sheets for well construction and completion operations. 4.1.3 Takin

45、g and retention for future reference of samples of filler materials used in connection with the construction of boreholes for geothermal purposes. 4.1.4 Excess consumption of filler materials up to 10 % of the theoretically needed volume. 4.1.5 Clearwater pumps, if the well is completed as the boreh

46、ole is made. 4.2 In addition to those specified in DIN 18299, subclause 4.2, the following also count as special tasks: 4.2.1 Work in accordance with subclauses 3.1.5, 3.1.6, 3.3.5, 3.4.4, 3.4.5, 3.5.3 and 3.5.4. 4.2.2 Taking water and gas samples, establishing the type and amount of gas, and its pr

47、essure. 4.2.3 Supply, provision, filling and labelling of containers to receive water and gas samples. 4.2.4 Handling, transport, analysis, and storage of water and gas samples. 4.2.5 Measurement of water level in neighbouring wells, ground water gauging stations or other waters. 4.2.6 Incorporating

48、 completed boreholes in existing structures. 4.2.7 Installing gravel baskets. 4.2.8 Providing, laying and dismantling drainage pipes. 4.2.9 Provision of main pumps and sand pumps. 4.2.10 Clearing the well floor of sediment after pumping. 4.2.11 Disinfection of wells. 4.2.12 Establishing the completed borehole location and elevation and recording of data in as-built drawings. 4.2.13 Any work involved prior to carrying out measurements and investigations at the completed borehole. DIN 18302:2016-09 14 4.2.14 Protective and precautionary measures where vehicles or persons tra